After picking up a pair of offensive linemen and several defensive starters in free agency and the draft, the Arizona Cardinals are adding even more reinforcements from a previous draft class.

By all accounts, 2013 first-round guard Jonathan Cooper and third-round defensive back Tyrann Mathieu have fully recovered from major leg injuries that sabotaged their sophomore campaigns.

Mathieu played 13 games last season, albeit in a part-time role as the coaches eased him back into the rotation. The Cardinals now believe the versatile playmaker is "back to the player he was" before a torn ACL ended his Defensive Rookie of the Year bid in 2013, per Mike Jurecki of Fox Sports 910 in Phoenix.

Although his 2015 role isn't set in stone, the Cardinals' offseason moves suggest Mathieu will split his time between safety and slot corner just as he did as a rookie.

A healthy Mathieu is one of the game's most instinctive playmakers, capable of adding an extra dimension to new coordinator James Bettcher's defense.